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List of earthquakes in California – Wikipedia From the free encyclopedia Jump to navigation search list article Probabilistic seismic hazard map Although written history is not long records exist that affected Spanish missions were constructed beginning late th century Those ceased when secularized and from point until Gold Rush s sparse Other sources for occurrence usually came ship captains other explorers The earliest known earthquake was documented by Catholic missionaries Portol expedition as they traveled northward San Diego along Santa Ana River near present site Los Angeles For period there about one potentially damaging event per year on average though many these did cause serious consequences or loss life few occurred American Midwest East Coast well Cape Ann New Madrid Charleston it became apparent settlers situation much different West While Juan Capistrano Fort Tejon Lone Pine shocks only moderately destructive mostly unpopulated areas Hayward thriving financial hub Francisco Bay Area with damage Rosa north Cruz south By this time scientists aware threat but seismology still its infancy Reactions following events early centuries included real estate developers press boosters minimizing downplaying risk out fear ongoing economic boom would be negatively According seismologist Charles Richter moved United States Government into acknowledging problem Prior no agency specifically focused researching activity Weather Bureau record happened several Geological Survey had briefly disengaged their regular duties mapping mineral resources write reports trained geologists working Geodetic made responsible after outlook improved Professor Andrew Lawson brought state’s first monitoring program online at University Berkeley Harry Wood who later instrumental getting Caltech Seismological Laboratory operational Early developments lab Pasadena an observation network using own custom built short seismometers magnitude scale updated version Mercalli intensity In Long Beach a populated area damaged destroyed public school buildings Some decades Fernando Valley heavy hospitals both cases perception those involved policy making changed state laws building codes modified without debate require commercial residential properties withstand Higher standards established fire stations schools construction dwellings also restricted active faults Contents Tectonic setting Earthquakes See References External links edit Basin Mendocino Fracture Zone Salton Trough During last million years nearly entire west coast North America dominated subduction zone Farallon Plate subducting beneath Presently de Fuca Explorer Gorda satellite plates Rivera Cocos Plates are remnants once larger plate margin remains strike-slip Andreas Fault SAF diffuse Pacific boundary extends east Range Province eastern western Nevada seismically called Walker Lane southwest Continental Borderland region off central southern coasts This system terminates Triple Junction most regions where occasionally result intraplate deformation within It Sea displacement transitions series spreading centers transform Brawley Seismic Imperial spans offshore bulk lying main There probability will generate Mw greater before including which has gone beyond return quiet segment Bautista fault creep studied recurring Parkfield occur secondary lay extreme portion young Jacinto may taking over primary Cajon Pass A paleoseismic investigation Lidar revealed more than meters ft slip accumulated since borders Mojave Desert Greater Near Transverse Ranges reverse thrust have produced Barbara Date Name Mag MMI Deaths Injuries Total notes Ridgecrest Eastern IX b VIII South Napa m La Habra LA VI Few Baja VII Eureka Chino Hills Limited Alum Rock Simeon Central Yountville Hector Mine Northridge Big Bear Inland Empire More triggered Landers dmge tsunami Joshua Tree Ms Light moderate Sierra Madre Upland Loma Prieta Mts ML Minor Elmore Ranch Triggered Superstition Whittier Chalfant sequence Oceanside k N Palm Springs Morgan Hill Coalinga Westmorland Mammoth Lakes swarm Livermore Doublet doublet Coyote Lake Butte County Point Mugu Several XI Borrego Mtn rockslides Kern Hundreds Hot Torrance Gardena El Centro X Severe Lompoc Moderate Humboldt Inglewood Northern Conflagration Mare Island Vacaville Winters MLa Laguna Salada Crescent City ground cracks limited Southern Ventura Tsunami Stover amp Coffman uses various scales Mla local equivalent used prior based perceptibility presented isoseismal maps moment surface wave inclusion criteria adding WikiProject Earthquakes’ notability guideline developed stand alone articles principles described applicable lists summary injurious deadly should recorded billion Alquist Priolo Special Studies Act forecast Field Geography Earthquake Center Timeline Toppozada T R Branum D Annals Geophysics Ellsworth W L System USGS Professional Paper pp ISBN Hough S E Richter’s Scale Measure Man Physics Today Princeton Press Bibcode PhT H doi Geschwind C Science Risk Politics Hazard Mitigation Johns Hopkins Goodstein J Millikan’s School History Institute Technology Norton Company Yeats Active Faults World Cambridge c National Geophysical Data Service NGDC WDS Significant Database Set NOAA V TD K Sources Seismicity Revised U Printing Office O Bulletin Society Wikimedia Commons media related Look up Wiktionary dictionary Information Region-California Putting Down Roots Country Alliance Broadband Collection What Will Happen After ‘Big One’ Hits SoCal KCET Little-known quake hazards lurk Union drought major overdue Conversation bill aims create inventory collapse-risk Temblor Inc vteEarthquakes CaliforniaVery Large Owens Narrows Retrieved https en wikipedia org w index php title oldid Categories CaliforniaCalifornia history-related listsCalifornia nature-related listsNatural disasters CaliforniaCalifornia-related listsLists StatesTsunamis StatesHidden categories Articles descriptionShort description WikidataArticles abbreviated captions 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